Temperature damper regulator



1,645,886 Oct- 18 1927 H. A. THRUSH TEMPERATURE DAMPER REGULATOR Filed Feb. I5.V 1926 I H /5 um! Homer Thrush www Patented `.Oct 18, 1927. i

y Holvinn A. THRUSH,

naaste PATENT OFFICE. i.

or PERU, alemana. l

TEMPRAJJURE 1 DAMPER REGULATOR.

Application `iled February My said inveiitioiirrelates to a temperature damper regulator for heating plants and itis an object ot the same to simplify the construction ot suoli devices and render them more convenient in use and less expensive in transportation. z

Referring to the accompanying drawings which 'are made a part hereof and on which similar reference characters indicate similar parts, i i

F ig. l is a front elevation of the principal elements ot a heating plant, f Fig. Q, similar elevationl of -parts shown in Fig. l, `this view being on; an enlarged scale, and i i .Figh a detail of parts shown iu F ig. Q, on a still larger scale.

In `the drawings referencecharacter l() indicates a turnacewhich may be ot' the hot 'watertype having` outgoing` pipes `ll and return pipes 12.` The luiinace is provided with an upper damper liand a lower dani `perla `in the door ot' the `ash pit.: The

'damper 13 is connected by a chain l5 to a crank lG and the damper let lis connected by achain 17 to a crank 18.44 :A chain `19 connects vertical arms ofthetwo cranks.

A pipe 2O extends `trom one ot' the outgoing pipes llto a 4damperyregulator 2l controlled by temperature or pressure of the heating fluid. A yoke is located upon the body ot the regulator Qland` a` rod connected to a niovableelenient, suchfasa diaphragm, in the `body ot the regulator `is pivotally secured to a regulatorlever 24 pivoted at 25 ou one arm ot the yoke. The

lever is made preferably jfrom `roundistock` flattened at intervalsfwhich renders it.convenient to `makethe lever in. sections and yet provide tor smooth suritaces without 1r- A i'egularities whereby the weights" hereinafter referred to maybe slid back and A'forth on lthe lever wit-hout diliculty.` At one side otl the pivot the'lever may carry aplurality oit weights 26, 27 mounted for *convenient adjustment alongbone arm of said lever and attlie outer end ot' the other arm it is piv otallyconnected at 28 to the chain `17. The

regulator lever, as ordinarily manufactured, is cumbersome and awkward to ship as it either requires a long separate` package or else fits in awkwardly with other elements of the regulator. To` avoidsuchditliculty in shipment I have made thelregulator lever 3, 1926. Serial No. 85,786.

in sections, here shown as three in number.

Figure 3 illustrates the` construction of the joints between thetwo sections a` and b; As shown iii this .figure each oit the sections i has an internally threaded opening .eiitend-` f ing axially thereof and a threaded `stud 29 ol' the sections and thereby parts ofthe lever are `rigidly but detachably connected .togeach is screwed into the openings in adjacentends other and can readily be put together or taken apart tor shipment or storage.;

The body 2l has a threaded.openingiat` one side as indicated at 30 for. convenient` connectioiiby a pipe such as 20 to an Outgoingpipe 1l. At its underside anopening is provided at 3l tor convenient attachment oit a circulating pipe 32 which is also connected to dowiigoing pipe 12in cases where such a circulating pipe `is deemed desirable. .lt may be added that all other similar peg` ulators so far as I ani .aware must be connected to openings such as are provided di-` rectly in boilers ot some varieties. or else threaded directly to the flowpipes whereas tiny ldevice `may be `connected by interme-` diate pipes in any convenient or desirable `manner to the flow` pipes so as to secure `the greatest eiiiciency. This also ,InakesQitfpOssible to locate the body* .ot theiregulator in such a position that the' chains extending to the various dampers or draft controlling` xsuppliesa limited selection or adjustment `.tor the proper location or position otgthe regulator so thatit may be connected inthe` most advantageous manner to thechains `which operate the draft dempers@ `Insome instances theregulator will have to be `set` `a considerable distance away from the iow pipes, it being remembered that the position i ot my device is not arbitrarily fixedas in the case ot other regulating devices. When `this is .the case the circulating pipe 32 may beutilized, there being a place for `attachregulator' to insure appropriate operation of y the element 22, the sectional lever, etc.

It may be noted that the flow pipes are connected by pipes 33 leading to an air-V tight pressure tank 34 and that the return pipes are connected by a pipe '35 to a dif:- ferential pressure relief device 36,

It will beV obvious to those. skilled in the art that various changes vmay be made in my device without departing from the spirit of-ltheinvention and therefore .I do ynot limit myself to what is shown in the drawings and 'described in the specilication, but only as indicated in the appended claims. Y

Having-thus fully described my said in vention, what VI claim asnew and desire to secure by Letters Patent, is:

i l. In a, heating plant, a furnace having draft-controlling means, a pressure-operated regula-ton therefor, a sectional regulatorlev'enoperated by a movable element of the regulator, flexible: connections from vsaid lever to saidcontrolling devices, and means for varying the? resistanceof said lever to the pressure of saidI cont-roller, substantially as set forth.

AQJInfa heating plant, a furnace having 'draft-controllingA means, a pressureoperated regulator therefor having a hollow body connected to an outgoin-g circulating lpipe for the heating medium, a pressure-respon sive element on said body, connections from "saidKV element YtoV said` draft-controlling means, and a circulation pipe leading. from i tliebottomv` of the body to a return pipe for the heating forth.

medium, substantially as set i V3. The' combination in a heating plant of I a rsmooth"regulator lever comprising a rod formed of; av'plurality of separable sections, 'an intermediate section being flattened for pivotal connection with a pressure operated Vregulator,A 'and Weights slidable on said "lever, substantially as set forth.

' a, Aregulator leverfor a lheating plant sections being provided at their contiguous endsv with internati:T threaded openings, 'st-ubs threaded into said openings for connecting them rigidly together and weights slidable freel-y'on said lever ever the joints heating fluid from the upper portion of said i boiler to radiators, a branch pipe and arranged to be secured in a plurality of positions connected,` to` said outlet pipe, a pres--r sure operated regulator for said draft control meansconnected to said branch pipe, a yoke on said regulator, ay lever `pivoted on one arm of the yoke, the-other arm of said yoke forming ya guide for said lever, a rod having one end pivoted to said lever be'- tween theV arms of the yokey and havingr its other end connected, to the movable element of the regulator, chains connecting `one arm of. said lever to said draft controlling means and adjustable weights on the other arm of the lever, substantially as setforth. n

6. rPhe combinationA of a furnace having draft controllingfvmeans, al boilerl associated with saidrfurnaceyan out-let pipe for conducting heating fluid from the upper portion of said boiler to radiators, ,a branch pipe having one end connected to said outlet pipe and arranged to-befsecnred in a plurality Aof positions, said branch pipe having its.

other end communicating with the boilerl below they connection with the ,branch pipe, a

pressure operated regulator for said'draftv controlling means inserted in' said branch pipe, a yoke on said regulator having a pair of bifurcated ends, alever pivoted yin' one of saidV bifurcatedends ofthe yoke and eX- tending through the bifurcation and the opposite'en'df of the-lever, Whereb-'yrthesame lis held against any movement about a ver@ Vticalpivot,Y a rod-having one end pivoted to said lever between the yarms of the yoke and havingits other end connected to the movable element of the-regulator, a chain connecting` a. plurality of drafts,'said chain Vbeing"connectedfto said-lever and weights on said'V leveradapted, to` hold vsaid chai-n and [drafts in a certain. position, but being adapted'to be operated by the movable element of the regulator for causing the drafts to f assumeV a different position, substantially Aas set forth.

In witness gwhereof, Ivhave hereuntoset my hand and seal atPeru, Indiana this 30th day of January, A.VK l). nineteen vhundred and; twenty-six."

`Hoi/inn aQVTHRUs-H. 

